Global Patent Index - EP 0492760 B1

EP 0492760 B1 19950405 - Speed reduction device.

Title (en)

Speed reduction device.

Title (de)

Untersetzungsgetriebe.

Title (fr)

Dispositif réducteur de vitesse.

Publication

EP 0492760 B1 19950405 (EN)

Application

EP 91304362 A 19910515

Priority

JP 41885390 A 19901227

Abstract (en)

[origin: EP0492760A1] In a speed reduction device, first and second discs (4,6) are provided to oppose each other, and a plurality of semi-spherical recesses (16a) are provided on the opposing surface of the first disc along a certain pitch circle. A groove (15) is provided on the opposing surface of the second disc, the groove being defined by a cycloidal curve running along a similar pitch circle. Rollable balls (17) are provided to be placed at each of the semi-spherical recess and the groove, the balls are adapted to roll within the recess, and at the same time, rolling along the groove when an orbital motion is transmitted to the second disc to impart to it with a second, rotary motion. A rectifier member (12) is provided to pick up the rotary motion of the second disc. <IMAGE>

IPC 1-7

F16H 25/06

IPC 8 full level

F16H 1/32 (2006.01); F16H 13/06 (2006.01); F16H 25/06 (2006.01)

CPC (source: EP KR US)

F16H 13/06 (2013.01 - KR); F16H 25/06 (2013.01 - EP US); F16H 2001/326 (2013.01 - EP US); F16H 2025/063 (2013.01 - EP US)

Citation (examination)

PATENT ABSTRACTS OF JAPAN vol. 10, no. 59 (M-459)(2116) 8 March 1986 & JP-A-60 205 058 (TOSHIBA) see figure 8

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0492760 A1 19920701; EP 0492760 B1 19950405; DE 69108699 D1 19950511; DE 69108699 T2 19950817; JP 2966536 B2 19991025; JP H04272552 A 19920929; KR 920012785 A 19920727; KR 950001115 B1 19950211; US 5197930 A 19930330

DOCDB simple family (application)

EP 91304362 A 19910515; DE 69108699 T 19910515; JP 41885390 A 19901227; KR 910008111 A 19910518; US 69259191 A 19910429